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Finding the Fourth Proportional to 9,789.79, 14,684.64 and 2,394.29

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Solution

The fourth proportional to 9,789.79, 14,684.64 and 2,394.29 is: 3,591.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789.79 : 14,684.64 = 2,394.29 : x
  2. Step 2: Convert to fraction form
    9,789.79/14,684.64 = 2,394.29/x
  3. Step 3: Cross multiply
    9,789.79x = 14,684.64 × 2,394.29
  4. Step 4: Simplify right side
    9,789.79x = 35,159,286.71
  5. Step 5: Solve for x
    x = 35,159,286.71/9,789.79
  6. Step 6: Final answer
    x = 3,591.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.